Truman is an English surname meaning "trusty man" or "faithful man", from Old English treowe, "true". President Harry S. Truman and author Truman Capote gave it a presidential and a literary note, and The Truman Show made it familiar to a younger generation. Truman entered the US top 1000 in 2003, peaked at number 931 in 2012 and has slipped to number 1553 in 2025.